Law enforcement officials tell us tonight these last two weeks of summer are prime time for pick pockets. Abc's gio benitez tells us why and their new tricks of the trade. Reporter: Watch, a woman at this train station is about to become a victim, sitting on a bench completely ignoring the guy sitting next to her. He signals a side kick who distracts her. That other guy, off with her purse. Watch again, the signal, the distraction, the theft, all happening within seconds. And the latest target, airports, here a former pick pocket demonstrates how easy it is to steal at a luggage carousel. The good thief waits until the perfect timing is there for the extraction. Reporter: Look at this guy in a hotel as he looks through his luggage, a thief grabs his other bag. Within seconds the man panics. It can happen anywhere. One of the busiest intersections in the world. Here in times square a special task force. What are you looking for when you looking for different people? Anybody that stands out, his mannerisms are different, eyes searching. This is a former pick pocket artist, a security consultant. The hat used to conceal his face from surveillance cameras. You'll remember his eccentric dress so he'll take it off. I throw the hat away, who is going to catch me. Reporter: Tip number one from a smart traveller. Put a couple of rubber bands around your wallet. That's it. Now shove that in your pocket again. Now try and take it out as easily as you did before. You see how it -- it sort of got stuck right there. Reporter: Tip two, never hang that purse on a chair. He demonstrates on an abc staffer. But a pick pocket's dream grab, your smart phone, could be worth 400 bucks on the street. Tip three, be vigilant. Gio benitez, abc news, new york.

This transcript has been automatically generated and may not be 100% accurate.

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